Kolibear
It was an E. German MIG, if I remember correctly. I was on duty at Maastricht UAC and the first we knew about it was when the Lippe Radar guys started to get very excited.
A hot scramble from Soesteberg followed and we tracked the Mig through Dutch Airspace, being careful to keep our traffic well out of it's way as it proceeded from RKN to NIK.
Just after crossing into Belgium it ran out of fuel and crashed killing i believe one person on the ground.